PVB resin(Polyvinyl Butyral) is widely used due to its adhesion, flexibility, toughness, and clear film formation. As an interlayer in laminated safety glass, PVB bonds glass layers together and enhances impact resistance. In coatings and paints, it improves film formation, adhesion, flexibility, and surface protection. It also serves as a binder for alcohol-soluble or solvent-based systems in printing inks, and can function as a temporary binder or processing aid in ceramics.

PVB resin applications include: coatings, inks, wash primers, ceramic substrates, composites, structural adhesives, laminated safety glass interlayers,ceramic injection molding, and vacuum aluminum-plated paper.

The Key Question for Buyers

For buyers, the critical question is not simply "Can PVB be used in my product?" A more useful question is: "Which PVB grade best suits my solvent system, viscosity target, substrate, processing method, and final performance requirements?"

How to Choose the Right PVB Resin Grade

PVB resin selection should be driven by the final application:

Printing inks: Check solubility, solvent release, pigment wetting, adhesion to film or paper, and final ink transfer.

Coatings: Check film hardness, flexibility, adhesion, clarity, chemical resistance, and compatibility with other resins.

Laminated safety glass: Prioritize optical clarity, mechanical strength, moisture control, and long-term stability.

Sunman offers PVB product types from A-10 to A-70, with varying ranges of viscosity, volatile content, polyvinyl butyral content, hydroxyl content, rotational viscosity, and ash. This broad range of grades enables formulators to select PVB based on practical processing and performance requirements rather than settling for a general-purpose grade.

A practical selection process should include sample testing. Buyers should prepare a small resin solution using the intended solvent system, verify dissolution time, check clarity, perform a filtration test, and evaluate film behavior. In coating and ink systems, the resin should also be tested with pigments, additives, and the final substrate.

So if you are interesting and need samples for test, pls contact us now.